Definition of barrel cactus in English:
A spiny, ribbed cylindrical cactus.
- Ferocactus, Echinocereus, and other genera, family Cactaceae: numerous species, including the Arizona barrel cactus (F. wislizenii), with yellow, orange, or red flower
- Saguaro grows here, along with numerous smaller cacti, including teddy-bear cholla, beaver-tail cactus, California barrel cactus, hedgehog cactus, and various prickly pear cacti.
- You'll traverse a series of high valleys, ravines, and washes filled with a variety of plants, including purple barrel cactus and stands of ocotillos.
- There was neither road nor house, only a saguaro here, a barrel cactus there, a lot of sand underfoot, and even more sun overhead.